[1] : WordNet (r) 2.0

ammonium alum
     n : a white crystalline double sulfate of aluminum: the ammonium
         double sulfate of aluminum syn: alum, ammonia alum
see also:
alum ammonia alum 

Alum >> A Words
Alum, definition of term: Alum
alum_pag1.html

Ammonium >> A Words
Ammonium, definition of term: Ammonium
ammonium_pag1.html

Ammonium Nitrat >> A Words
Ammonium Nitrat, definition of term: Ammonium Nitrat
ammonium+nitrat_pag1.html

Ammonium Hydrox >> A Words
Ammonium Hydrox, definition of term: Ammonium Hydrox
ammonium+hydrox_pag1.html

Ammonium Carbon >> A Words
Ammonium Carbon, definition of term: Ammonium Carbon
ammonium+carbon_pag1.html

Ammonium Chlori >> A Words
Ammonium Chlori, definition of term: Ammonium Chlori
ammonium+chlori_pag1.html